Services

Microtunnelling

Rimic Civil has got extensive micro tunnelling experience in difficult ground conditions. Rimic Civil operate a number of Iseki TCZ TBMs. We can construct tunnels ranging from 150mm up to over 1m in diameter in the worst ground conditions using our earth pressure balance machines.

We can construct tunnels in a wide range of pipe materials.

Our typical micro tunnel equipment set up consists of a TBM matched to the expected subsurface conditions and the pipe diameter to be installed, a hydraulic jacking system to pipe jack the pipeline, a closed loop slurry system to remove the excavated tunnel spoil, a slurry cleaning system to remove the spoil from the slurry water, a lubrication system to lubricate the exterior of the pipeline during installation, a laser guidance system to provide installation accuracy, an electrical supply and distribution system to power all of the above equipment.